package com.itzh.netty.protocoltcp;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;

import java.nio.charset.Charset;

public class MyClientHandler extends SimpleChannelInboundHandler<MessageProtocol> {
    private int count;
//    @Override
//    protected void channelRead0(ChannelHandlerContext ctx, ByteBuf msg) throws Exception {
//        byte [] buffer = new byte[msg.readableBytes()];
//        msg.readBytes(buffer);
//        String message = new String(buffer, Charset.forName("utf-8"));
//        System.out.println("客户端接收到消息="+message);
//        System.out.println("客户端接收到消息数量="+(++this.count));
//    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("异常消息="+cause.getMessage());
        ctx.close();
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        for (int i = 0; i < 5; i++) {
            String mes = "今天天气冷，吃火锅";
            byte[] content = mes.getBytes(Charset.forName("utf-8"));
            int length = mes.getBytes(Charset.forName("utf-8")).length;
            //创建协议包
            MessageProtocol messageProtocol = new MessageProtocol();
            messageProtocol.setLen(length);
            messageProtocol.setContent(content);
            ctx.writeAndFlush(messageProtocol);
        }
    }

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, MessageProtocol msg) throws Exception {
        int len = msg.getLen();
        byte[] content = msg.getContent();
        System.out.println("客户端接收到消息如下：");
        System.out.println("长度="+len);
        System.out.println("内容="+new String(content,Charset.forName("utf-8")));
        System.out.println("客户端接收到消息数量="+(++this.count));

    }
}
